CN220741650U - Mortar stirring tank for shield tunneling machine - Google Patents
Mortar stirring tank for shield tunneling machine Download PDFInfo
- Publication number
- CN220741650U CN220741650U CN202322108562.5U CN202322108562U CN220741650U CN 220741650 U CN220741650 U CN 220741650U CN 202322108562 U CN202322108562 U CN 202322108562U CN 220741650 U CN220741650 U CN 220741650U
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- Prior art keywords
- stirring
- tank
- connecting shell
- mortar
- spring
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- 238000003756 stirring Methods 0.000 title claims abstract description 102
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 27
- 230000005641 tunneling Effects 0.000 title claims abstract description 15
- 239000002002 slurry Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 4
- 239000002893 slag Substances 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The mortar stirring tank for the shield tunneling machine comprises a tank body and a fixed base, wherein the tank body is transversely fixed on the fixed base, a stirring rod is arranged on a stirring shaft in the tank body, the stirring rod is movably connected with stirring blades through an elastic telescopic assembly, the elastic telescopic assembly comprises a connecting shell and a spring, one end of the connecting shell is open and is connected with the inner circular surface of the stirring blades, a sliding hole is formed in the other end, opposite to the opening, of the connecting shell, the stirring rod penetrates through the sliding hole, a limiting head is arranged on the part, located in the connecting shell, of the stirring rod, and the diameter of the limiting head is larger than the aperture of the sliding hole; the spring is arranged in the connecting shell and is in a compressed state, one end of the spring is abutted with the limiting head of the stirring rod, the other end of the spring is abutted with the stirring blade, and the outer circular surface of the stirring blade is in abutting contact with the inner wall of the tank body. The stirring blade can be always contacted with the inner wall of the stirring tank and tightly attached to the inner wall of the stirring tank under the action of the spring, so that the time for accumulating slag in the tank and cleaning the accumulated slag is reduced, and the quality of mortar is improved.
Description
Technical Field
The utility model belongs to the field of shield machines, and particularly relates to a mortar stirring tank for a shield machine.
Background
In the construction process of the shield machine, forward thrust and cutter head rotation are utilized to cut the soil in front, and a tunnel with the diameter larger than that of the equipment shield body is excavated. Through shield shelter, constructors splice the segments at the tail of the shield body by utilizing a segment splicer to form a final required tunnel. The tunnel external diameter is less than the shield body, is less than the excavation diameter of blade disc more, consequently, shield constructs the machine and drifts forward the back, excavates the tunnel and can form certain gap between the tunnel that has assembled, and this gap if not in time packs, causes harm such as ground subsidence, tunnel deformation, gushing water leakage easily, and the result is inconceivable when serious. In order to avoid the occurrence of the damage, the shield machine must be injected in time when tunneling forward, and the secondary slurry supplementing is performed after the shield machine is coagulated for a period of time, so that the shield machine can play a role in protection.
The shield construction often encounters the phenomenon that the front stratum is unstable and water is easy to gush, in order to guarantee construction safety, advanced drilling and grouting are usually carried out, the front stratum is stabilized in advance, construction hidden danger is reduced, and construction quality is guaranteed.
Grouting introduction: according to different grouting periods, grouting forms can be divided into advanced grouting, primary grouting and secondary grouting. Advanced grouting is typically used to pre-consolidate the formation, and in the event of poorly conditioned geology, grout is injected through advanced grouting pipes to stabilize the formation. The primary grouting is a main grouting form for filling the excavation gap after the shield tunneling machine is tunneled forwards, and is also the most important grouting link in construction. The secondary grouting is a grouting form for compensating the defect of the primary grouting after the primary grouting is coagulated for a period of time. The mortar stirring tank for the shield machine is mainly used for primary grouting.
The mortar stirring tank for the shield machine is a vane type horizontal stirring tank, and is mainly used for stirring mortar conveyed from a mortar conveying tank in a locomotive marshalling train from ground to ground, and injecting the mortar into a gap between a shield tail and a stratum by a shield body forward travel through a grouting pump of a trolley in the shield pushing process.
The mortar stirring tank used by the prior shield tunneling machine has the following defects: 1. gaps exist between the stirring blades and the inner wall of the stirring tank, so that slag is easy to accumulate; 2. the cross section of the tank body of the stirring tank is generally composed of a lower semicircle and an upper rectangle, and the distance from the stirring blade to the inner wall of the rectangular part is larger at the boundary of the semicircle and the rectangle, so that slag is more likely to accumulate at the boundary and the inner wall of the rectangular part above the boundary; 3. generally, the top of the stirring tank adopts an open design, so that the quality of the slurry is convenient to stir, but even if an anti-falling net is arranged, sundries are inevitably dropped into the stirring tank, and potential safety hazards exist.
Disclosure of Invention
The utility model aims to provide a mortar stirring tank for a shield machine, wherein stirring blades of the mortar stirring tank can be always contacted with the inner wall of the stirring tank and tightly attached under the action of a spring, so that the time for accumulating slag in the tank and cleaning the accumulated slag is reduced, and the quality of mortar is improved.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a mortar agitator tank for shield constructs machine, includes jar body and unable adjustment base, and jar body transversely places and fixes on unable adjustment base, is provided with puddler and the stirring vane who is connected with the puddler on the (mixing) shaft in jar body, through flexible subassembly swing joint between puddler and the stirring vane, flexible subassembly includes coupling housing and spring, coupling housing one end is uncovered, is connected with the interior round surface of stirring vane, and the other end opposite with uncovered on the coupling housing is equipped with the sliding hole, the puddler passes the sliding hole setting, and the puddler is located the part of coupling housing and is provided with the spacing head, and spacing head diameter is greater than the aperture of sliding hole; the spring is arranged in the connecting shell and is in a compressed state, one end of the spring is abutted with the limiting head of the stirring rod, the other end of the spring is abutted with the stirring blade, and the outer circular surface of the stirring blade is in abutting contact with the inner wall of the tank body.
The limiting head is a limiting plate, and the limiting plate and the stirring rod are of an integrated structure.
The limiting head is a limiting plate, and the limiting plate is fixed on the end face of the stirring rod through a screw.
The periphery of the limiting head is contacted with the inner wall of the connecting shell.
A sealing gasket or a sealing ring is arranged between the end face of the limiting head and the inner side of the end face of the connecting shell.
The inner circular surface of the stirring blade is provided with a connecting lug for installing the connecting shell, and the connecting lug protrudes out of the inner circular surface of the stirring blade.
The tank body is cylindrical, and end openings are formed in the upper parts of the end faces of the two ends of the tank body.
The bottom of the tank body is provided with a slurry discharging pipe.
One end of the tank body is provided with a stirring motor for driving the stirring shaft to rotate.
The beneficial effects of the utility model are as follows: 1. according to the elastic telescopic component, the stirring blade can be pressed on the inner wall of the tank body by means of the elasticity of the spring, the bonding state of the stirring blade and the inner wall of the tank body is maintained, and in the stirring process, the stirring blade can timely scrape off attached slurry on the inner wall of the tank body, so that accumulated slag which is difficult to clean due to long-time attachment is avoided; when the inner wall of the tank body is provided with slag or barriers which are difficult to scrape, the stirring blade can compress the spring and move towards the stirring shaft relative to the stirring rod, so that the barriers are avoided, and damage to the stirring blade is avoided.
2. The utility model adopts the cylindrical tank body, the top of the tank body does not need to be opened, but the upper parts of the two end surfaces are opened, thereby not only avoiding sundries from falling into the tank body, but also facilitating workers to observe the liquid level height through the end opening at any time, and injecting slurry into the tank body through the end opening.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a schematic view of an agitator blade arrangement of the present utility model;
FIG. 3 is a schematic view of an elastic expansion assembly according to the present utility model;
the marks in the figure: 1. tank body 2, (mixing) shaft, 3, stirring vane, 4, agitator motor, 5, unable adjustment base, 6, mud pipe, 7, end opening, 8, puddler, 9, elastic expansion assembly, 10, connection lug, 11, connection casing, 12, sealing gasket, 13, limiting plate, 14, spring.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples, which are not intended to be limiting.
Referring to fig. 1 and 2, a mortar stirring tank for a shield tunneling machine comprises a fixed base 5 and a tank body 1, wherein the tank body 1 is cylindrical, is transversely placed on the fixed base 5 and is fixedly arranged, a stirring shaft 2 is rotatably installed in the tank body 1, two ends of the stirring shaft 2 are supported on supporting bearings in the centers of two end surfaces of the tank body 1, one end of the stirring shaft 2 extends out of the tank body 1 and is connected with an output shaft of a stirring motor 4 through a coupling, and the stirring motor 4 is fixed on the end surface of the tank body 1 through a motor support; spiral interval sets up a plurality of puddler installation positions on the (mixing) shaft 2, and fixed mounting puddler 8 on every installation position, and the puddler 8 is kept away from the tip of (mixing) shaft 2 and is connected with stirring vane 3 through elastic expansion assembly 9, and stirring vane 3's outer disc is the cambered surface that can laminate with jar body 1 inner wall, and elastic expansion assembly 9's setting can remain stirring vane 3 outer disc and jar body 1 inner wall's laminating all the time, in time strikes off the thick liquids that will adhere, avoids appearing jar body inner wall long-pending sediment's condition.
As shown in fig. 3, the elastic expansion assembly 9 includes a spring 14 and a connection housing 11, one end of the connection housing 11 is open, the other end opposite to the open end is provided with a sliding hole for the stirring rod 8 to pass through, a part of the stirring rod 8 extending into the connection housing 11 is provided with a limiting plate 13 or a limiting ring, and the diameter of the limiting plate 13 or the limiting ring is larger than the aperture of the sliding hole, and in this embodiment, the limiting plate 13 integrated with the stirring rod is adopted; the open end of the connection shell 11 is fixedly connected to the inner circular surface of the stirring blade 3 through bolts, and further, a connection lug 10 can be arranged on the inner circular surface of the stirring blade 3 to provide a plane for installing the connection shell 11, and the connection shell 11 is connected with the connection lug 10 through bolts; the spring 14 is placed in a cavity in the connecting shell 11, the expansion and contraction direction of the spring 14 is consistent with the axial direction of the stirring rod 8, one end of the spring 14 is propped against the connecting convex block 10, and the other end is propped against the plate surface of the limiting plate 13 at the end part of the stirring rod 8.
The stirring blade 3 and the connecting shell 11 can move relative to the stirring rod 8 along the expansion and contraction direction of the spring 14 as a whole, when the stirring shaft 2 rotates the mortar in the stirring tank body 1, the elastic force of the spring 14 can press the stirring blade 3 on the inner wall of the tank body, so that the mortar on the inner wall of the tank body is timely scraped, and long-time adhesion and slag accumulation are avoided; meanwhile, if the inner wall of the tank body is provided with obstacles such as old deposited slag and the like which are difficult to scrape, the stirring blade 3 can compress the spring 14 along the radial direction, namely the axial direction of the stirring rod to avoid the obstacles, so that the stirring blade 3 is prevented from being damaged.
Furthermore, in order to avoid slurry in the tank body 1 entering the connecting shell 11 to influence the action of the spring 14, a sealing ring or a sealing gasket 12 is arranged between the limiting plate 13 at the end part of the stirring rod 8 and the inner wall of the end surface of the connecting shell 11; the periphery of limiting plate 13 is laminated with the inside wall of connection casing 11, provides the direction for the slip of puddler 8 by the inside wall of connection casing 11.
The tank 1 of the present utility model is further provided with an end opening 7 for observing the height of the liquid surface in the tank and feeding slurry into the tank, and the end opening 7 is provided at the upper part of both end surfaces of the tank 1. Thus, the top of the tank body does not need to be opened, so that hidden danger of sundries falling does not occur, and when slurry is fed, only the slurry feeding pipeline is required to be inserted into the end opening 7, and in the slurry feeding and stirring process, workers can observe the liquid level in the tank body at any time through the end opening 7.
The bottom of the tank body 1 is provided with a slurry discharging pipe 6 for connecting a slurry discharging pipeline.
The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present utility model with reference to the above embodiments, and any modifications and equivalents not departing from the spirit and scope of the present utility model are within the scope of the claims appended hereto.
Claims (9)
1. The utility model provides a shield constructs quick-witted mortar agitator tank, includes jar body and unable adjustment base, and jar body transversely places and fixes on unable adjustment base, is provided with the puddler on the (mixing) shaft in jar body and is connected its characterized in that with the puddler: the stirring rod is movably connected with the stirring blade through an elastic telescopic component, the elastic telescopic component comprises a connecting shell and a spring, one end of the connecting shell is open and is connected with the inner circular surface of the stirring blade, a sliding hole is formed in the other end, opposite to the opening, of the connecting shell, the stirring rod penetrates through the sliding hole, a limiting head is arranged at the part, located in the connecting shell, of the stirring rod, and the diameter of the limiting head is larger than the diameter of the sliding hole; the spring is arranged in the connecting shell and is in a compressed state, one end of the spring is abutted with the limiting head of the stirring rod, the other end of the spring is abutted with the stirring blade, and the outer circular surface of the stirring blade is in abutting contact with the inner wall of the tank body.
2. The mortar stirring tank for a shield tunneling machine according to claim 1, wherein: the limiting head is a limiting plate, and the limiting plate and the stirring rod are of an integrated structure.
3. The mortar stirring tank for a shield tunneling machine according to claim 1, wherein: the limiting head is a limiting plate, and the limiting plate is fixed on the end face of the stirring rod through a screw.
4. The mortar stirring tank for a shield tunneling machine according to claim 1, wherein: the periphery of the limiting head is contacted with the inner wall of the connecting shell.
5. The mortar stirring tank for a shield tunneling machine according to claim 1, wherein: a sealing gasket or a sealing ring is arranged between the end face of the limiting head and the inner side of the end face of the connecting shell.
6. The mortar stirring tank for a shield tunneling machine according to claim 1, wherein: the inner circular surface of the stirring blade is provided with a connecting lug for installing the connecting shell, and the connecting lug protrudes out of the inner circular surface of the stirring blade.
7. The mortar stirring tank for a shield tunneling machine according to claim 1, wherein: the tank body is cylindrical, and end openings are formed in the upper parts of the end faces of the two ends of the tank body.
8. The mortar stirring tank for a shield tunneling machine according to claim 1, wherein: the bottom of the tank body is provided with a slurry discharging pipe.
9. The mortar stirring tank for a shield tunneling machine according to claim 1, wherein: one end of the tank body is provided with a stirring motor for driving the stirring shaft to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322108562.5U CN220741650U (en) | 2023-08-07 | 2023-08-07 | Mortar stirring tank for shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322108562.5U CN220741650U (en) | 2023-08-07 | 2023-08-07 | Mortar stirring tank for shield tunneling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220741650U true CN220741650U (en) | 2024-04-09 |
Family
ID=90559545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322108562.5U Active CN220741650U (en) | 2023-08-07 | 2023-08-07 | Mortar stirring tank for shield tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220741650U (en) |
-
2023
- 2023-08-07 CN CN202322108562.5U patent/CN220741650U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |